Visualizing electron pockets in cuprate superconductors
نویسندگان
چکیده
منابع مشابه
Bogoliubov angle in electron-doped cuprate superconductors
Within the framework of the kinetic energy driven superconducting mechanism, the momentum dependence of the Bogoliubov angle in the electron-doped cuprate superconductors is studied. By calculation of the ratio of the low energy quasiparticle spectra at positive and negative energies, it is shown that the Bogoliubov angle increases monotonically across the Fermi crossing point, suggesting a con...
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T. Xiang,1,2 H. G. Luo,2,3 D. H. Lu,4 K. M. Shen,5 and Z. X. Shen4 1Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing 100190, China 2Institute of Theoretical Physics, Chinese Academy of Sciences, P.O. Box 2735, Beijing 100190, China 3Center for Interdisciplinary Studies, Lanzhou University, Lanzhou 730000, China 4Department of Physics, Applied Physics, and Stanford Synchr...
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We measured the magnetoresistance as a function of temperature down to 20 mK and magnetic field for a set of underdoped Pr1.88Ce0.12CuO4− thin films with controlled oxygen content. This allows us to access the edge of the superconducting dome on the underdoped side. The sheet resistance increases with increasing oxygen content whereas the superconducting transition temperature is steadily decre...
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Metals approaching the Mott insulator generate a new hierarchy in the electronic structure accompanied by a momentum dependent electron differentiation, beyond the MottHubbard, Brinkman-Rice and Slater pictures of the Mott transition. To consider such nonlinear phenomenon, we develop an analytic nonperturbative theory based on operator projections combined with a self-consistent treatment of th...
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In this lecture we present some interesting issues that arise when the dynamics of the charge carriers in the CuO2 planes of the high temperature superconductors is considered. Based on the qualitative picture of doping, set by experiments and some previous calculations, we consider the strength of various inter and intra-cell charge transfer susceptibilities, the question of Coulomb screening ...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2012
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.85.224535